http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. While U.S. intelligence officials have spent more than seven years searching fruitlessly for Osama bin Laden, UCLA geographers say they have a good idea of where the terrorist leader was at the end of 2001 - and perhaps where he has been in the years since. http://www.physorg.com/news154112231.html Other Sciences Tue, 17 Feb 2009 16:58:11 EST news154112231 A new theory referred to as the Decrease-Radix Design is proposed. And based on this theory, the regulations of making multi-valued logic operation units are presented. The theory has laid down a solid foundation for the design of re-constructible logic units in ternary optical computers as well as any other multi-valued computers. http://www.physorg.com/news150719026.html Technology Fri, 09 Jan 2009 10:23:46 EST news150719026